Steam-engine



2 Sheets-Sheet 1,

(No Model.)

G. W. FITB.

STEAM ENGINE. 7 No. 395,967. Patented Jan. 8, 188-9.

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(No Model.) 2 Shets-Sheet 2.. G. 'W. FITE.

STEAM ENGINE. I

No. 395,967. Patented Jan. 8, 1889.

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NITED STAT S PATENT FFICE.

STEAM-ENGINE.

SPECIFICATION forming part of Letters Patent No. 395,967, dated January8, 1889.

Application filed August 10, 188B- gerial No. 282,406. (No model.)

Be it known that I, GEORGE M. FITE, a citizen of the United States,residing at New Richmond, in the county of Clermont and State of Ohio,have invented new and useful Improvements in Steam-En gines, of whichthe following is a specification.

The object of my invention is to simplify and improve the constructionof steam-engines, whereby fewer moving parts will be necessary toproduce the desired result, thereby reducing the friction and enablingagiven pressure of steam to accomplish more work than heretofore. Iattain this object by a certain novel construction and combination ofdevices fully described hereinafter, and specifically pointed out in theappended claims.

In the drawings, Figure 1 is a side view of a steam-engine embodyingmyimprovements. Fig. 2 is a plan view, partly broken away, of the same.Fig. 3 is a vertical central longitudinal sectional view taken throughthe cylinder. Fig. 4 is a horizontal sectional view of the steam-chestand cylinder to show the arrangement of the steam-channels. Fig. 5 is adetail view of the inner side' of one of the cylinder-heads to show thearrangement of the steam-channels therein. Fig. 6 is a similar view ofthe inner side of the other cylinder-head to show the steam-channelstherein.

Referring by letter to the drawings, A represents the bed of the engine,in suitable bearings near one end of which is mounted the main shaft 13,which is provided with the usual fly-wheel, C, and the eccentric D, andE represents the cylinder, adjacent to which is arranged the steam-chestF. The interior of this cylinder is divided by longitudinally-extendingwedge-shaped partitions e 6 into the upper and lower chambers, G and G,the shape of which is similar to that formed by a rectangle rotating;about one of its sides as an axis.

The piston ll consists of the rectangular wings h h, which are located,respectively, in the chambers G and G, and are fixed at their inner oradjacent sides in a shaft, H, which extends axially through thecylinder, and is mounted in a central socket, i, in the center of thecylinder-head I, and a bearing, is, (having a stuffing-box, k,) in thecylinder-head K. This shaft passes between the adjacent apeXes of thewedge-shaped partitions, and fits snugly against the same, therebycutting off all communication between the upper and lower chambers ofthe cylinder. The shaft H extends beyond the head K, and is mounted inthe bearing 71 and L represents a crank which is fixed to the extremityof the shaft, and is connected to awheel or disk, M, on the main shaftby means of the connecting-rod N. It will be seen that when the pistonis oscillated in the cylinder the swinging crank on the end of the shaftH will cause the disk M, and consequently the main shaft of the en gine,to be rotated.

0 represents the inlet-pipe which conveys the steam to the steam-chest,and 0 represents the exhaust-port in the bottom of the chest. Onopposite sides of the said port are arranged the steam-portsPP, and Qrepresents a slide-vah'e, which is adapted to cover the exhaust-port oand one of the steam-ports in either of its positions. This valve isprovided with a stem, g, which is connected by means of the rod q to theeccentric D on the mainv shaft, in the usual way.

The steam-port P communicates directly through the channel 19 with theadjacent side of the lower chamber of the cylinder, and through thechannel 19 in the cylinder-head I with the remotest side of the upperchamher, and the steam-port P communicates, through the channel p in thelower side of the steam-chest, with the diverging channels 13 p, whichare formed in the head K, and which communicate, respectively, with theadjacent side of the upper chamber and the remote side of the lowerchamber.

It will be seen that when the steam-port P is opened the steam isconveyed by different channels to opposite sides of the wings h and h,respectively, thereby causing the pistonshaft to rotate in the directionindicated by the arrow in Fig. 3, and when the steam-port P is openedthe steam will be conveyed through suitable channels to the reversesides of the said wings, and the piston-shaft will be rotated in theopposite direction. The

channels through which the steam admitted to the cylinder when thepiston is rotated in one direction serve as escape-channels to con- Ivey away the dead steam when the piston is the sets of channels 7) pand. pflp, and p", re-

rotatcd in the oppositedirection. The channel p and the channels p p aretermed, respectively, in the thickness of the cylinderheads I and K, andtherefore occupy no unnecessary space.

The operation of the engine will be readily understood from theforegoing description without further enlargement.

Having thus described the invention, I claim- 1. In a steamengine, thecombination of the cylinder provided with the chambers G (l,the pistonII, mounted in the cylinder and provided with the radial wings 71 h,fitting-in the said chambers, and the steam-chest proyided with the portI which communicates with the chambers of the cylinder on opposite sidesof the wings h it, and the port P, which connnunicates with the saidchambers on the reverse sides of the said wings, substantially as andfor the purpose specified.

2. In a steam-engine, the combination of the cylinder prot'ided with thechambers G G, the piston II, having the wings h 71/, mounted in thecylinder, and the steam-chest provided with the steam-port P, whichcomn'iunicates through the channels p and p with opposite ends of thesaid chambers G and G, respectively, and the steam-port P, whichconnnunicates through the channels 2 and p with opposite ends of thechambers G and G, respectively, substantially as specified.

3. In a steam-engine, the combination of the cylinder provided with thechambers G and G, and having the heads I and K, provided, respectively,with the channel 1) and i the diverging channels p and 1)", the pistonII, mounted in the said cylinder, and the steam-chestprovided with theports I P, which communicate with the cylinder through i specti vel y,substantially as specified.

4. In a steam-engine, the cylinder divided into chambers G G, andprovided with the channels 17 p which cmnmunicate, respectively, withthe adjacent and remote sides of the chambers G and G, and the channelsp and 1), which communicate, respectively,witl1 the adjacent and remotesides of the chambers G and G, in combination with the piston II,mounted in the cylinder and provided with wings h h, and thesteam-chestprovided with the port 1,which communicates with the channelsp and p and the port P,whichcommunieates with the channels and 1)",substantially as specified.

5. In a steam-engine, the combination of the cylinder provided withchambers G and l, and steam-channels 7), 11 p and p, commu nieating,respectively,with the ends of the said chambers, the piston 11, havingthe wings h h, mountedin the cylinder, the steam-chest provided with theexhaust-port 0, and the steam-ports P and I communi ating, substantially as described,wi1h the said channels, and the valve coveringthe said exhaust-port and one of the steam-ports, substantially as andfor the purpose specified.

In testimony that I claim the foregoing as my own I have hereto a tiixedmy signature in presence of two witnesses.

GEORGE WM. FITE.

Witnesses:

EDWARD FITE, W. E. NICHOLS.

